01601oam 2200469 a 450 991069181000332120030325145311.0(CKB)5470000002349308(OCoLC)51796293ocm51796293(OCoLC)995470000002349308(EXLCZ)99547000000234930820030305d2001 ua 0engurgn||||||txtrdacontentcrdamediacrrdacarrier40Ar/39Ar age-spectrum and laser fusion data for volcanic rocks in west central Colorado[electronic resource] /by Michael J. Kunk, Jeffrey A. Winick, and Josette O. StanleyOn-line ed.[Reston, Va.] :U.S. Dept. of the Interior, U.S. Geological Survey,2001.Open-file report ;01-472Title from title screen (viewed on Mar. 5, 2003).Includes bibliographical references.40Ar/39Ar age spectrum and laser fusion data for volcanic rocks in west central ColoradoBasaltColoradoVolcanic ash, tuff, etcColoradoArgon-argon datingColoradoBasaltVolcanic ash, tuff, etc.Argon-argon datingKunk Michael J1384281Winick Jeffrey A1385642Stanley Josette O1385643Geological Survey (U.S.)GISGISGPOBOOK991069181000332140Ar3433507UNINA